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Transform arcsin into arccos : asin2acos

asin2acos takes as argument an expression containing inverse trigonometric functions.
asin2acos replaces arcsin(x) by $\displaystyle {\frac{{\pi}}{{2}}}$ - arccos(x), in this expression.
Input :
asin2acos(acos(x)+asin(x))
Output after simplification :
pi/2


giac documentation written by Renée De Graeve and Bernard Parisse